Car-truck



(N Model.)

Jl M. AUSTIN.

GAR TRUCK. y

No. 533,421. Patented Peb. 5, 1895.

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n'rnrwr errent CAR-TRUCK.

SPECIFICATION forming part of Letters Patent No.' 533,421, datedFebruary 5, 1895.

Application filed August 14, 189141. Serial No. 520,318. (No model.)

To a/ZZ whom it may concern: Y

Be it known that I, JAMES MARSHALL Aus- TIN, a citizen of the UnitedStates, residing at Tyrone, in the county of Blair and State ofPennsylvania, have invented a new and useful Car-Truck, of which thefollowingis a specification.

` The invention relates to improvements in car trucks.

The obj ect of the present invention is to improve the construction oftrucks for mine and other cars, to increase the durability of thewheels, and to lessen the friction on them in rounding curves.

The invention consists in the construction and novel combination andarrangement of parts hereinafter fully described, illustrated in theaccompanying drawings, and pointed out in the claims hereto appended.

In the drawings: Figure 1 is a perspective view of a car truckconstructed in accordance with this invention. Fig. 2 is a transversesectional view. Fig. 3 is a longitudinal sectional view. Fig. 4; is adetail view of the bracing plate. Fig. 5 is a similar view of one of thejournal boxes.

Like numerals of reference indicate corresponding parts in all thefigures of the drawings.

1 designates a car truck, having similar sides, composed of upper andlower longitu dinal bars 2 and 3, which are connected at their ends byangle cross-bars' 4: located at the ends of the truck, and each havingone flange arranged horizontally and secured by vertical bolts to theupper faces of the longitudinal bars 2, and its other flange dependingvertically beyond the longitudinal bars. The lower longitudinal bar 3 isstraight to within a short distance of its ends, the end portions 5being inclined upward, and secured to the lower face of the upperlongitudinal bar 2 by vertical bolts 6, which also serve for fasteningthe angle cross-bars 4. The upper bars are arched at 7 at equaldistances from each end of the truck, to receive journal boxes 8, whichare provided with rounded tops and straight horizontal bottoms.

The upper longitudinal bars 2, and the lower longitudinal bars 3, arearranged in pairs at each side of the truck, and form at each side ofthe same wheel spaces 9, receiving car wheels 10 securedcentrally toshort axles 11, projecting laterally from opposite sides of the wheels,and terminating in journals arranged in the journal boxes 8., A pair ofjournal boxes is provided for each wheel, and each journal box hasgrooves 12 and 13 in its up- `per and lower faces or edges receivingrespectively the arched portions 7 of the upper longitudinal bars 2, andthe straight horizontal portion of the lower bar 3. Each journal box isprovided at each side with a vertical web 14 extending from the upperface of the lower longitudinal bar 3 to the lower face of the upper one,and provided at its outer vertical edge with a groove receiving a bolt15 and conforming to the configuration of the same. The bolt passesthrough the longitudinal bars, and the vertical webs of the journalboxes support the longitudinal bars, and increase the strength of thetruck.

The longitudinal bars are supported between the journal boxes byvertical plates 16, interposed between them and having its upper andlower edges bearing against the adjacent faces of thelongitudinal bars;and the `vertical edges of the plate 16, are provided with grooves 17,receiving and conforming to the conguration of vertical bolts 18 whichpass through the longitudinal bars.

The journal boxes receive the journals, and extend inward into the space9, and bear against the side faces of the hubs of the wh eels, andthereby prevent the axles from shifting longitudinally in the journalboxes. This ar rangementgreatly increases the durability of wheels, andprevents the hubs from being worn away before the rims; and it greatly`lessens the friction incident to wheels rounding curves, and preservesthe wheels at the Same diameter.

It will be seen that the truck is simple and comparatively inexpensivein construction,

that it possesses great strength and durabil- IOO to without departingfrom the principle or sacrificing any of the advantages of thisinvention.

What I claim is- 5 1. In a car truck, the combination of the up- 1o andprovided in their upper and lower faces with grooves receiving the upperand lower longitudinal bars, said journal boxes being l provided at eachside with vertical webs ex- Y, tending from the top to the bottom barsand r 5 having vertical grooves, and vertical bolts passing through theupper and lower bars and arranged in the vertical grooves of the webs,substantially as described.

2. In a car truck, the combination of the upzo perlongitudinal barsarrangedinpairs ateach side of the truck and forming intervening Wheelspaces, the lower longitudinal bars arranged in pairs and having theirend portions extended upward and connected to the upper bars, thejournal boxes arranged in pairs at each side of the truck and havinggrooves to receive the longitudinal bars and provided at their sideswith vertically grooved webs, the vertical plates disposedlongitudinally between the upper and lower bars and provided at theirends with Vertical grooves, bolts passing through the longitudinal barsand arranged in the vertical grooves of the plates, and the journalboxes, and the angle crossbars connecting the ends of the longitudinalbars, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixednay-signature in the presence of two witnesses.

JAMES MARSHALL AUSTIN.

Witnesses:

H. B. CALDERWooD, G. L. OWENS.

